Emerald Airlines, operator of Aer Lingus Regional, will start two new services from Dublin from October 30, serving Southampton and Aberdeen.
The flights will operate daily, with fares from €37.99 each-way as part of a return trip.
This announcement means the carrier will be flying 22 routes.
Ciarán Smith, head of commercial at Emerald Airlines, said: “After a very successful summer season, we are delighted to be upping our frequencies and adding new routes out of Dublin to/from Aberdeen and Southampton.
“With convenient timings and cost-effective flights, we strongly believe these connections will be warmly welcomed by both business and leisure travellers. We look forward to a busy winter ahead.
“The new routes form part of Emerald Airlines’ wider expansion strategy, which will come to fruition over the coming months; seeing the delivery of five additional aircraft, adding further capacity, and increasing frequencies.”
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Two new Aer Lingus Regional services take off from Belfast City